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8090 [49]
3 years ago
14

The formula is:

mula1" title="v = \frac{4}{3}\pi {r}^{3} " alt="v = \frac{4}{3}\pi {r}^{3} " align="absmiddle" class="latex-formula">
​

Mathematics
1 answer:
uranmaximum [27]3 years ago
5 0

Answer:

Volume of hemisphere=

<u>\frac{2}{3} \pi   {r}^{3}</u>

<u>Volume</u><u> </u><u>of</u><u> </u><u>sphere</u><u>=</u><u> </u>

<u>\frac{4}{3} \pi {r}^{3}</u>

Step-by-step explanation:

\frac{2}{3}  \times  \frac{22}{7}  \times  {8}^{3}

Using calculator=

1072.761905

Round to the nearest tenth=

1072.8

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Evaluate the expression: x +y + z (if x =33, y = -28, and z =40)
Mrac [35]
Answer is 45 (33-28+40=45)
8 0
2 years ago
“If it is July then it is summer, and it is not July therefore it is not summer” Is this reasoning valid? Why or why not?
MAVERICK [17]

Answer:

No

Step-by-step explanation:

Summer starts in June and ends in August, so this is not valid.

Bam

6 0
3 years ago
The point (−3, 1) is on the terminal side of angle θ, in standard position. What are the values of sine, cosine, and tangent of
Ivenika [448]

The length of the hypotenuse = √(-3^2 +1^2) = √10

The point -3,1 tell us the length of y is 1 and the length of x is 3.

This would make opposite = 1 and adjacent = -3

Sinθ = opposite/hypotenuse =  1/√10  = √10/10

Cosθ = adjacent/hypotenuse = -3/√10  = - 3√10/10

Tanθ = opposite/adjacent = 1/-3 = -1/3

6 0
3 years ago
24 divided by 4 times d
nadya68 [22]

Answer:

i think 6 not sure tho sorry if its worng

3 0
3 years ago
A timer is started and a few moments later a model airplane is launched from the ground. Its height (in feet) as a function of t
WITCHER [35]

The airplane reaches its maximum height of 81 feet in 12 seconds.

<h3>Behavior of curves</h3>

If y = x^{2}, it means that the second derivate is 2 which is positive, then there is a minimum turning point.

If y = - x^{2}, it means that the second derivative will be -2 which is negative, then there is a maximum turning point.

Analysis:

h(t) = -(t - 12)^{2} + 81

By expanding,

h(t) = -(t^{2} - 24t + 144) +81

h(t) = -t^{2} + 24t - 144 + 81

h(t) = -t^{2} + 24t - 63

at turning point d/dt(h(t)) = 0

d/dt (h(t)) = -2t +24

-2t +24 = 0

if we differentiate again, second derivative is -2 which is negative, so it is a maximum point.

2t = 24

t  = 12 seconds

h(t) at t = 12

h(t) = -(12)^{2} + 24(12) - 63 = 81 feet

In conclusion, the maximum height of the airplane after 12 seconds is 81 feet.

Learn more about minimum and maximum points: brainly.com/question/14993153

#SPJ1

7 0
2 years ago
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